This list comprises major chemical companies in South Korea, including large diversified groups and mid-sized firms. The companies are primarily involved in chemical manufacturing, oil and gas, and advanced materials.
Key players include Hanwha Group, a global diversified business; LG Chem, specializing in petrochemicals and life sciences; SK Innovation, focused on sustainable energy technologies; and POSCO HOLDINGS, a global steel producer. A notable pattern is the strong concentration of headquarters in Seoul, indicating the capital's role as a business hub for this sector.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Hanwha Grouphanwha.com
Global diversified business group specializing in energy, aerospace, finance, retail, and services with a strong focus on sustainability and innovation. |
7,341 | |||
| 2 |
LG Chemlgchem.com
A global chemical company specializing in petrochemicals, advanced materials, and life sciences, committed to carbon-neutral growth and net-zero emissions by 2050 |
5,545 | |||
| 3 |
POSCO HOLDINGSnewsroom.posco.com
A global steel producer known for innovative solutions, recognized for competitiveness, and committed to corporate citizenship and sustainable growth |
3,967 | |||
| 4 |
SK Innovationskinnovation.com
SK Innovation is a leading energy company focused on sustainable technologies, oil refining, petrochemicals, electric vehicle batteries, and global material solutions |
3,906 | |||
| 5 |
SK Engineering & Construction Co. Ltdskecoplant.com
A company established in 1977, focused on sustainable growth, stability, and achieving happiness for humanity through consistent efforts |
3,256 | |||
| 6 |
Hyosung Corporationhyosung.com
An innovative conglomerate focused on developing materials, parts, and equipment for safer vehicles, sustainable electricity, functional clothing, and customer well-being |
2,571 | |||
| 7 |
LOTTE chemicallottechem.com
A global petrochemical company focused on developing cutting-edge technologies for producing high-quality chemical products and expanding globally |
1,939 | |||
| 8 |
GS Caltexgscaltex.com
A leading petroleum company in South Korea, producing high-quality petroleum products and leading economic development through domestic supply and global exports |
979 | |||
| 9 | 788 | ||||
| 10 |
Kolon Industries, Inckolonindustries.com
A pioneer in the Korean fashion industry, offering innovative and reliable products, with a vision to lead globally in fashion trends |
740 | |||
| 11 |
SK ecoplantskecoplant.com
Leading environmental services operator focused on water treatment, waste management, e-waste, renewable energy, and building a circular economy for a better world |
684 | |||
| 12 |
Dangote Cement Senegal S.A.dangotecement.com
Produces high-quality cement in Senegal, utilizing local limestone reserves. Provides superior cement for the construction industry and exports to West African countries. |
675 | |||
| 13 |
S-OIL Corporations-oil.com
An oil refining company with integrated operations in lubricants and petrochemicals, ensuring stable crude oil imports and superior competitiveness in the market |
666 | |||
| 14 |
Samyang Groupsamyang.com
A diversified company founded in 1924, specializing in chemicals, food, biopharmaceuticals, and packaging, focusing on innovation and global expansion |
503 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 15 |
SK chemicalsskchemicals.com
The company manufactures chemical products including PETG and PET resins for various industries, as well as life science products like anti-cancer agents and vaccines |
491 | |||
| 16 | 416 | ||||
| 17 |
Kumho Tirekumhotire.co.kr
A global tire manufacturing company with 8 production facilities across Korea, China, USA, and Vietnam along with a worldwide sales network |
390 | |||
| 18 |
Korea Research Institute of Chemical Technology (KRICT)krict.re.kr
The company develops new technologies in chemistry, enhances industry competitiveness, creates growth industries, and participates in policy-making and research collaboration |
360 | |||
| 19 |
Hanwha Solutions Corporationhanwhasolutions.com
A company specializing in smart energy solutions, customer-focused materials, and green hydrogen, aiming to lead in sustainable global growth for a better future |
321 | |||
| 20 |
CJ CheilJedang BIOcjbio.net
Global bio ingredients producer and supplier for feed and food industry, offering amino acids, single cell protein, nucleotides, and MSG while advancing sustainable bio solutions |
309 | |||
| 21 |
SONGWON Industrial Groupsongwon.com
A global leader providing specialty chemicals since 1965, offering innovative solutions for a sustainable future with products in over 60 countries |
256 | |||
| 22 | 183 | ||||
| 23 | 182 | ||||
| 24 |
hanhwa totalhanwha-total.com
A company specializing in petrochemicals, with a focus on producing various chemical products and materials for a wide range of industries |
173 | |||
| 25 |
SFC Co., Ltd.sfcprobes.com
A South Korean company specializing in OLED raw materials, fluorescent dyes, oligonucleotides, and oligo API CDMO services for molecular diagnostics |
29 | |||
| 26 |
FTC Koreaftckorea.com
The company specializes in developing various precision chemical products such as catalysts, surfactants, additives for coatings, resins, flow control agents, and raw materials for cosmetics |
21 | |||
| 27 |
ILJIN Composites Co.,Ltd.composite.co.kr
Global leader in hydrogen storage systems with over 20 years of experience Provides cylinder and whole system/module solutions for FCEV vehicles |
14 | |||
| 28 |
REVATIONrevation.co.kr
A green solution company offering eco-friendly product development services, including consultation, design, R&D, manufacturing, inspection, and delivery, using sustainable materials |
8 | |||
| 29 |
Saint-Gobain Life Science KR (생고뱅코리아)xn--299as6v82bm6gdrgtqr.com
A global leader in developing and integrating diverse raw materials based on innovative materials, providing customized single-use solutions for biopharmaceuticals and cell therapy markets |
6 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.
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